($\frac{-3}{2}$ – $\frac{15}{17}$ ) + ($\frac{5}{2}$ – $\frac{2}{17}$ + $\frac{2017}{2018}$ )

0 bình luận về “($\frac{-3}{2}$ – $\frac{15}{17}$ ) + ($\frac{5}{2}$ – $\frac{2}{17}$ + $\frac{2017}{2018}$ )”

1. `((-3)/2 – 15/17) + (5/2 – 2/17 + 2017/2918)`

   `= (-3)/2 – 15/17 + 5/2 – 2/17 + 2017/2018`

   `= ((-3)/2 + 5/2) – (15/17 + 2/17) + 2017/2018`

   `= 1 – 1 + 2017/2018`

   `= 0 + 2017/2018 = 2017/2018`

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2. $(-3/2 – 15/17) + (5/2 – 2/17 + 2017/2018)$

   $= -3/2 – 15/17 + 5/2 – 2/17 + 2017/2018$

   $= 2017/2018 + [(-3/2 – 5/2) – (15/17 – 2/17)]$

   $= 2017/2018 + (1 – 1)$

   $= 2017/2018 + 0$

   $= 2017/2018$

    

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